There are two streams of liquid flowing through the heat exchanger. As these streams pass opposite sides of the tube thermal energy flows transfers liquid A or liquid B

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?